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Is Kahului, HI tap water safe?

Wailuku serves Kahului, by EPA’s records. Here is what EPA’s records show for it, against the legal limits and the stricter health goals.

Matched to your utility using EPA records.

The short answer

Wailuku serves Kahului. In EPA’s records it has nothing above a health goal, and no health-based violation since 2016.

That data covers what its report lists, not everything.

Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.

Water testing near Kahului

A utility tests the water it sends out. A test of your own tap shows what your pipes add, and on a private well it is the only test there is. It takes a lab Hawaii certifies.

No lab Hawaii certifies is within 75 miles of Kahului on the state’s list. Some take samples by mail; the state’s page lists them all.

All 12 certified labs for Hawaii

ZIP codes in Kahului

Which ZIP codes are in Kahului: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology.

Near Kahului

Other towns in Maui County with a page of their own.